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posted by Anonymous on Monday, January 28, 2013 at 1:16pm.
Find the surface area of a cone if the diameter of its base is 13.5 feet, and it has a slant height of 16.8 feet. Round to the nearest tenth.
a = pi r^2 + pi r s = pi* 13.5/2 (13.5/2 + 16.8) = 158 77/80 pi
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